1997 Ski-Doo Factory Shop Manual Volume Two, Page 257Get this manual
Section 06 REAR SUSPENSION Sub-Section 02 (SC-10 SUSPENSIONS (ALL VERSIONS))
A06F0YA
Tuning for less damping it is important to remember, never use less than 26 mm (1.02 in) shims against pistonThis will guard against fatigue breakagePiston no6 options include pistons, 0, 2, 4, 6, slits for rebound damping bleedsThese bleed slits will offer damping variation to the function of the shims
Compression
Whenever tuning for more compression damping always use 30 mm (1.18 in) shims no7 against piston to properly close piston orifice holesTwo thin shims will offer less damping than one thick shims of the equal thicknessTuning for less damping it is important to remember, never use less than shims against pistonThis will guard against fatigue breakageOne 0.114 mm spacer washers no8 minimum (2 or more recommended) should always be used between shim stack and valve stopper washerThis will allow needed room for the valve shims to functionCompression valve stop no9 must have slots facing shim stack
' referring to above illustration